Methods, systems, and devices for wireless communication are described. A user equipment (UE) may autonomously initiate a handover procedure and select a target base station for the handover procedure. The UE may measure a signal from the source base station or the target base station, or both, and the UE may determine whether specific criteria at both base stations are within a pre-configured range. If the criteria at both base stations are within the pre-configured range, the UE may identify the target base station as a potential candidate for a handover. Accordingly, when the UE determines that radio conditions with the source base station are deteriorating (or fall below a threshold), the UE may initiate a handover to the target base station autonomously and without specific direction from the source base station.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for wireless communication at a user equipment (UE), comprising: receiving, from a source base station, a range of values for at least one criterion for UE autonomous cell selection; identifying resources on which to transmit, to a target base station and the source base station, an indication of the target base station from a set of candidate base stations configured for autonomous cell selection; measuring a signal for one or more candidate base stations of the set of candidate base stations; selecting the target base station from the one or more candidate base stations based at least in part on measuring the signal and the at least one criterion being within the range of values; transmitting, to the source base station and to the target base station on the identified resources, the indication of the target base station; monitoring a first control channel of the source base station for control information during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after transmitting the indication of the target base station; and monitoring a second control channel of the target base station for an assignment of resources during a second subset of the set of transmission intervals corresponding to the threshold time after transmitting the indication of the target base station.
Wireless communication, user equipment autonomous cell selection. This invention addresses the process by which a user equipment (UE) autonomously selects a new base station to connect to, particularly when the UE is already connected to a source base station and wishes to switch to a target base station. The method involves the UE receiving a set of acceptable values for certain criteria from a source base station. The UE then identifies specific communication resources to use for signaling. It measures signals from a group of potential base stations. Based on these measurements and whether the measured values fall within the acceptable range provided by the source base station, the UE selects a target base station from the potential group. The UE then transmits an indication of this selected target base station to both the source and the target base stations using the previously identified resources. Following this transmission, the UE monitors a control channel of the source base station for control information during a specific period. Concurrently, the UE also monitors a control channel of the target base station for resource assignments during the same specific period. This period is defined relative to the time the target base station indication was transmitted.
2. The method of claim 1 , wherein the identified resources comprise a set of common resources.
A system and method for resource management in distributed computing environments addresses the challenge of efficiently allocating and utilizing shared resources across multiple computing nodes. The invention identifies and categorizes available resources within a network to optimize performance and reduce redundancy. Specifically, the method involves detecting and grouping resources that are commonly accessible by multiple nodes, such as shared storage, processing units, or network bandwidth. By identifying these common resources, the system ensures that they are allocated in a way that minimizes conflicts and maximizes efficiency. The method further includes dynamically adjusting resource allocation based on real-time usage patterns and demand, ensuring optimal utilization without overloading any single node. This approach improves system scalability, reduces latency, and enhances overall performance in distributed computing environments. The invention is particularly useful in cloud computing, data centers, and other large-scale computing systems where resource management is critical.
3. The method of claim 1 , wherein the indication of the target base station is transmitted to the source base station on a first set of resources of the identified resources and to the target base station on a second set of resources of the identified resources.
This invention relates to wireless communication systems, specifically to methods for transmitting an indication of a target base station during a handover process. The problem addressed is the efficient and reliable transmission of handover-related information between a source base station and a target base station to minimize interruptions in communication. The method involves identifying a set of communication resources for transmitting an indication of the target base station. The indication is then transmitted to both the source base station and the target base station using different subsets of the identified resources. The first subset of resources is used to send the indication to the source base station, while the second subset is used to transmit the same indication to the target base station. This dual transmission ensures that both base stations receive the necessary information for a seamless handover, reducing the risk of communication failures during the transition. The method may also include determining the first and second sets of resources based on factors such as channel conditions, resource availability, or network load. By dynamically allocating resources, the system optimizes the handover process, improving reliability and efficiency in wireless communication networks. This approach is particularly useful in high-mobility scenarios where quick and accurate handover decisions are critical.
4. The method of claim 1 , further comprising: receiving the assignment of resources from the target base station; and communicating with the target base station based at least in part on receiving the assignment of resources.
This invention relates to wireless communication systems, specifically methods for managing handover between base stations in a cellular network. The problem addressed is ensuring seamless and efficient communication during handover, where a user device transitions from a source base station to a target base station while maintaining data transmission integrity. The method involves a user device receiving a handover command from a source base station, which includes configuration parameters for connecting to a target base station. The user device then synchronizes with the target base station using these parameters, allowing it to establish a connection. The method further includes receiving an assignment of communication resources (e.g., time slots, frequency channels) from the target base station and using these resources to communicate with the target base station. This ensures that the user device can continue data transmission without interruption during the handover process. The method may also involve transmitting a handover completion message to the target base station once the connection is successfully established, confirming the transition. This approach improves handover reliability and reduces latency in wireless networks.
5. The method of claim 4 , wherein receiving the assignment of resources comprises: receiving the assignment of resources within the threshold time after transmitting the indication of the target base station.
A system and method for managing resource allocation in wireless communication networks, particularly for handover procedures between base stations. The invention addresses delays in resource assignment during handover, which can lead to service interruptions or dropped connections. The method involves a mobile device transmitting an indication of a target base station to which it intends to connect. The system then monitors for an assignment of communication resources from the target base station within a predefined threshold time after transmitting this indication. If the assignment is received within the threshold, the handover proceeds efficiently. If not, the system may trigger alternative actions, such as maintaining the current connection or attempting a different handover strategy. The threshold time is dynamically adjustable based on network conditions, device capabilities, or service requirements. This ensures timely resource allocation while minimizing disruptions during handover. The method improves handover reliability and user experience in wireless networks by reducing delays in resource assignment.
6. The method of claim 1 , further comprising: receiving an indication of a minimum time between handovers; determining that the minimum time has elapsed since a previous handover; and selecting the source base station for a handover based at least in part on the determination that the minimum time has elapsed.
Wireless communication systems manage handover decisions to maintain reliable connections as mobile devices move between base stations. Frequent handovers can degrade performance, causing unnecessary signaling overhead and potential service disruptions. To address this, a method controls handover timing by enforcing a minimum time interval between consecutive handovers. The system receives a predefined minimum time threshold and monitors the elapsed time since the last handover. If the minimum time has passed, the system evaluates handover conditions and selects a source base station for the next handover. This ensures handovers occur only when necessary, reducing unnecessary transitions and improving network efficiency. The method integrates with existing handover algorithms, enhancing stability without requiring significant infrastructure changes. By dynamically applying the time constraint, the system balances mobility needs with network resource optimization, particularly in dense or high-mobility environments. The approach is applicable to 4G, 5G, and beyond, supporting seamless connectivity while minimizing disruptions.
7. The method of claim 1 , further comprising: receiving radio resource control (RRC) signaling, broadcast information, or downlink control information (DCI), or a combination thereof that indicates the resources on which to transmit the indication of the target base station.
A method for wireless communication involves transmitting an indication of a target base station to a source base station. The method includes determining resources for transmitting the indication based on predefined rules or configuration parameters. The resources may be specified in radio resource control (RRC) signaling, broadcast information, downlink control information (DCI), or a combination of these signaling types. The indication of the target base station is then transmitted to the source base station using the determined resources. This method supports efficient handover or cell selection procedures in wireless networks by ensuring the source base station receives the target base station information on the correct resources. The approach reduces signaling overhead and improves reliability by dynamically or statically configuring the transmission resources. The method is applicable in cellular networks, including 5G and beyond, where seamless mobility and low-latency communication are critical. The use of multiple signaling types for resource indication provides flexibility in network deployment and operation.
8. The method of claim 7 , wherein the RRC signaling comprises unicast or broadcast signaling.
This invention relates to wireless communication systems, specifically to methods for transmitting Radio Resource Control (RRC) signaling in a network. The problem addressed is the need for efficient and flexible signaling mechanisms to manage communication between a base station and user devices. The invention provides a method where RRC signaling is transmitted using either unicast or broadcast signaling. Unicast signaling is directed to a specific user device, while broadcast signaling is sent to multiple devices simultaneously. This flexibility allows the network to optimize signaling based on the type of information being transmitted, such as device-specific configurations or system-wide updates. The method ensures reliable delivery of control information while minimizing resource usage. The invention may be part of a broader system for managing wireless connections, including procedures for establishing, modifying, or releasing communication links. The use of both unicast and broadcast signaling enhances adaptability in different network scenarios, improving overall efficiency and performance.
9. The method of claim 1 , wherein measuring the signal comprises: measuring at least one of a reference signal received power (RSRP), reference signal received quality (RSRQ), or a signal-to-interference-plus-noise ratio (SINR), or any combination thereof.
This invention relates to wireless communication systems, specifically to methods for measuring signal quality in cellular networks. The problem addressed is the need for accurate and reliable signal quality assessment to optimize network performance and user experience. The invention provides a method for measuring signal characteristics to evaluate the quality of wireless communication links. The method involves measuring at least one of the following signal parameters: reference signal received power (RSRP), reference signal received quality (RSRQ), or signal-to-interference-plus-noise ratio (SINR). RSRP quantifies the power level of reference signals transmitted by a base station, while RSRQ assesses the quality of these signals relative to interference and noise. SINR measures the ratio of the desired signal power to the combined interference and noise power. These measurements help determine the strength, reliability, and overall quality of the communication link between a user device and the network infrastructure. By analyzing these parameters, the method enables network operators to identify areas with poor signal coverage, optimize resource allocation, and improve handover decisions between cells. The combination of these measurements provides a comprehensive assessment of signal quality, supporting better network planning and performance optimization. This approach is particularly useful in heterogeneous networks where multiple signal sources and interference levels vary dynamically.
10. The method of claim 9 , wherein the at least one criterion comprises a ratio of a first RSRP of the source base station to a second RSRP of the target base station, a ratio of a first RSRQ of the source base station to a second RSRQ of the target base station, or a ratio of a first SINR of the source base station to a second SINR of the target base station, or any combination thereof.
A method for evaluating signal quality during wireless communication handover decisions involves comparing signal strength and interference metrics between a source base station and a target base station. The method assesses handover suitability by calculating ratios of key performance indicators (KPIs) such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal-to-Interference-plus-Noise Ratio (SINR) between the two base stations. These ratios help determine whether the target base station provides sufficient signal quality improvement over the source base station to justify a handover. The method may use any combination of these ratios to make a handover decision, ensuring seamless connectivity by prioritizing the best available signal conditions. This approach optimizes network performance by reducing unnecessary handovers and improving user experience in wireless networks.
11. The method of claim 1 , further comprising: receiving an indication of a transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to wireless communication systems, specifically to methods for optimizing handover procedures between base stations. The problem addressed is the need for efficient and reliable communication during handover, where a mobile device transitions from a source base station to a target base station. A key challenge is ensuring that the handover process is completed successfully while minimizing disruptions to the mobile device's connectivity. The method involves transmitting an indication of the target base station to both the source and target base stations. Additionally, the method includes receiving an indication of a transmit power level to use when sending this target base station information. This transmit power level is dynamically adjusted to ensure the signal is strong enough to be received by both base stations, improving the reliability of the handover process. The method may also involve determining the target base station based on signal strength measurements or other criteria, and coordinating the handover to minimize latency and packet loss. The transmit power adjustment helps maintain communication quality during the transition, reducing the risk of dropped connections or failed handovers. This approach is particularly useful in scenarios where the mobile device is moving between cells or experiencing varying signal conditions.
12. The method of claim 11 , wherein the indication of the transmit power comprises an indication of a common transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to wireless communication systems, specifically to methods for managing handover between base stations. The problem addressed is the need for efficient and reliable communication during handover, where a mobile device transitions from a source base station to a target base station. A key challenge is ensuring that the mobile device and both base stations can coordinate the handover process effectively, particularly regarding transmit power levels. The method involves transmitting an indication of a target base station from a mobile device to a source base station. This indication includes a common transmit power level that the mobile device should use when communicating with both the source and target base stations during the handover. By using a common transmit power, the method simplifies coordination between the mobile device and the base stations, reducing the risk of miscommunication or signal interference. The common transmit power ensures that the mobile device maintains a consistent signal strength when transmitting to both base stations, which is critical for a smooth handover process. This approach improves reliability and efficiency in wireless communication systems, particularly in scenarios where rapid and accurate handover is required.
13. The method of claim 11 , wherein the indication of the transmit power comprises an indication of a first transmit power to use to transmit the indication of the target base station to the source base station and a second transmit power to use to transmit the indication of the target base station to the target base station.
In wireless communication systems, efficient handover between base stations is critical for maintaining seamless connectivity. During handover, a user device must coordinate with both the source and target base stations to ensure uninterrupted service. A key challenge is determining the appropriate transmit power levels for signaling the handover process to both base stations. If the transmit power is too low, the signals may not reach the intended base stations, causing handover failure. If the transmit power is too high, it may interfere with other devices or waste energy. To address this, a method involves transmitting an indication of the target base station to both the source and target base stations using different transmit power levels. The method includes determining a first transmit power for sending the indication to the source base station and a second transmit power for sending the indication to the target base station. The first transmit power ensures reliable communication with the source base station during the handover process, while the second transmit power ensures the target base station receives the handover request. This approach optimizes power usage and minimizes interference by tailoring the transmit power to the specific requirements of each base station during handover. The method may also involve adjusting the transmit power levels based on signal quality measurements or network conditions to further improve reliability.
14. The method of claim 1 , further comprising: transmitting one or more measurement reports to the source base station, wherein the range of values for the at least one criterion for autonomous cell selection is received in response to the one or more measurement reports.
This invention relates to wireless communication systems, specifically methods for autonomous cell selection in mobile devices. The problem addressed is the need for mobile devices to efficiently select and switch between cells in a network without excessive signaling overhead or reliance on network commands. The invention improves upon prior art by enabling a mobile device to autonomously select a target cell based on configurable criteria, while dynamically adjusting those criteria based on real-time measurements. The method involves a mobile device receiving a range of values for at least one criterion used in autonomous cell selection. These criteria may include signal strength, quality, load conditions, or other network parameters. The mobile device then monitors and evaluates these criteria to determine whether to switch from a source base station to a target cell. To enhance decision-making, the mobile device transmits measurement reports to the source base station, which then provides updated ranges for the selection criteria in response. This feedback loop allows the network to dynamically adjust the selection thresholds based on current conditions, improving handover efficiency and reliability. The invention ensures seamless connectivity while reducing unnecessary signaling and improving resource utilization in the network.
15. The method of claim 14 , wherein the one or more measurement reports comprise: a measurement report for the source base station and one or more measurement reports for one or more of the set of candidate base stations.
In wireless communication systems, efficient handover of user devices between base stations is critical for maintaining seamless connectivity. A key challenge is accurately assessing signal quality and selecting the optimal target base station for handover to minimize service disruptions. Existing methods often rely on limited measurement data, leading to suboptimal handover decisions. This invention addresses the problem by enhancing handover decision-making through comprehensive measurement reporting. The method involves generating multiple measurement reports for a user device. One report provides signal quality data for the current source base station, while additional reports are generated for each of the candidate target base stations. These reports include metrics such as signal strength, interference levels, and other relevant parameters. By collecting and analyzing this expanded set of measurements, the system can make more informed handover decisions, improving reliability and performance. The approach ensures that the best target base station is selected based on a broader assessment of available network conditions, reducing the likelihood of failed handovers or degraded service quality. This method is particularly useful in dense network environments where multiple candidate base stations are available, enabling more precise and adaptive handover management.
16. The method of claim 1 , wherein the target base station is selected based at least in part on radio conditions for communications with the source base station.
This invention relates to wireless communication systems, specifically to methods for selecting a target base station during a handover process. The problem addressed is ensuring efficient and reliable handover of a mobile device from a source base station to a target base station, particularly in scenarios where radio conditions may affect communication quality. The method involves selecting a target base station for handover based on radio conditions between the mobile device and the source base station. This selection process considers factors such as signal strength, signal quality, or other radio metrics to determine the most suitable target base station. The method may also involve evaluating multiple candidate target base stations and choosing the one that provides the best radio conditions relative to the source base station. Additionally, the selection may incorporate additional criteria, such as network load, device mobility patterns, or service requirements, to optimize the handover decision. The goal is to minimize service interruptions and improve overall communication performance during handover.
17. The method of claim 1 , further comprising: receiving an indication of the set of candidate base stations configured for autonomous cell selection.
A method for optimizing wireless network connectivity involves selecting a base station for a user device in an autonomous manner, reducing reliance on network-controlled handover procedures. The method includes determining a set of candidate base stations based on signal quality metrics, such as signal strength or signal-to-noise ratio, from nearby base stations. The user device evaluates these candidates to select an optimal base station for communication, improving connection stability and reducing latency. Additionally, the method may involve receiving an indication of a predefined set of candidate base stations configured for autonomous cell selection, allowing the network to influence the selection process while maintaining device autonomy. This approach enhances efficiency in heterogeneous networks by enabling faster, more reliable transitions between cells without excessive signaling overhead. The solution is particularly useful in dense urban environments or high-mobility scenarios where traditional handover mechanisms may struggle to keep up with dynamic conditions. By leveraging local signal measurements and optional network guidance, the method ensures seamless connectivity while minimizing power consumption and processing load on the user device.
18. The method of claim 1 , further comprising: transmitting, to the source base station, an indication of the source base station based at least in part on a failure to receive the assignment of resources from the target base station within the threshold time after transmitting the indication of the target base station based at least in part on monitoring the second control channel; and communicating with the source base station based at least in part on transmitting the indication of the source base station.
This invention relates to wireless communication systems, specifically methods for handling handover failures between base stations. The problem addressed is ensuring reliable communication during handover when a target base station fails to assign resources within a specified timeframe. The method involves a user device monitoring a control channel from a target base station after initiating a handover from a source base station. If the target base station does not assign resources within a threshold time, the user device transmits an indication to the source base station, signaling the handover failure. The source base station then resumes communication with the user device, maintaining connectivity. This ensures seamless communication even if the handover process encounters delays or failures. The method includes monitoring the control channel, detecting the absence of resource assignment, and triggering a fallback to the source base station to prevent service interruptions. The invention improves handover reliability in wireless networks by providing a fallback mechanism when target base station resource allocation is delayed or unsuccessful.
19. A method for wireless communication, comprising: transmitting, to a user equipment (UE), a range of values for at least one criterion for autonomous cell selection; identifying resources to monitor for an indication, from the UE, of a target base station from a set of candidate base stations configured for autonomous cell selection; receiving, from the UE on the identified resources, the indication of the target base station; and transmitting, to the UE, control information on a first control channel during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of an assignment of resources to the UE on a second control channel by the target base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection and handover procedures. The problem addressed is the need for efficient and reliable communication during autonomous cell selection, where a user equipment (UE) independently selects a target base station from a set of candidate base stations without explicit network coordination. The invention provides a method to enhance this process by defining a structured approach for signaling and resource allocation. The method involves transmitting a range of values for at least one criterion to the UE, which the UE uses to autonomously select a target base station. The network identifies specific resources to monitor for an indication from the UE regarding its selected target base station. Upon receiving this indication, the network transmits control information to the UE on a first control channel during a predefined subset of transmission intervals. These intervals are part of a threshold time period following the UE's indication. During the remaining subset of this threshold time, the target base station is allocated resources on a second control channel to assign resources to the UE. This structured approach ensures coordinated communication between the network and the UE, minimizing disruptions during autonomous cell selection and handover. The method optimizes resource usage and reduces latency by clearly defining the roles of the network and the target base station in the handover process.
20. The method of claim 19 , further comprising: receiving, from the UE, an indication of a source base station after the threshold time after receiving the indication of the target base station; and communicating with the UE based at least in part on receiving the indication of the source base station.
This invention relates to wireless communication systems, specifically methods for managing handover procedures between base stations in a cellular network. The problem addressed is ensuring seamless communication during handover when a user equipment (UE) transitions between source and target base stations, particularly when the UE fails to complete the handover within a specified threshold time. The method involves a base station receiving an indication from the UE that it is preparing to handover to a target base station. If the handover is not completed within a threshold time, the base station receives an additional indication from the UE specifying the source base station. The base station then resumes communication with the UE based on this updated information. This ensures that the UE remains connected to the correct base station, preventing service disruptions during handover failures. The method also includes determining whether the UE is within a coverage area of the target base station and adjusting communication parameters accordingly. If the UE is not within the target base station's coverage, the base station may maintain or re-establish communication with the UE. This approach improves reliability in handover procedures by dynamically adapting to the UE's location and connection status. The invention is particularly useful in scenarios where handover delays or failures occur, ensuring continuous service for the UE.
21. The method of claim 19 , further comprising: receiving one or more measurement reports from the UE, wherein the range of values for the at least one criterion for autonomous cell selection is transmitted in response to the one or more measurement reports.
This invention relates to wireless communication systems, specifically methods for autonomous cell selection by user equipment (UE) in scenarios where the UE must choose a cell without direct network assistance. The problem addressed is ensuring the UE can reliably select an appropriate cell based on dynamic network conditions, such as signal strength, load, or quality metrics, without excessive signaling overhead or delays. The method involves a network node, such as a base station or mobility management entity, transmitting configuration parameters to the UE. These parameters define at least one criterion for autonomous cell selection, such as signal strength thresholds or cell load limits. The UE uses these criteria to evaluate available cells and select the most suitable one without waiting for explicit network commands. To enhance adaptability, the network node may adjust the range of values for these criteria based on measurement reports received from the UE. These reports provide real-time data on signal conditions, allowing the network to dynamically refine the selection criteria to optimize performance. This approach reduces unnecessary handover attempts and improves network efficiency by aligning the UE's autonomous decisions with current network conditions. The solution is particularly useful in scenarios where rapid cell reselection is needed, such as in high-mobility environments or during network congestion.
22. A method for wireless communication, comprising: identifying resources to monitor for an indication, from a user equipment (UE), of a target base station from a set of candidate base stations configured for autonomous cell selection; receiving, from the UE on the identified resources, the indication of the target base station; and transmitting, to the UE, an assignment of resources on a first control channel for the target base station during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of control information to the UE on a second control channel by a source base station.
This invention relates to wireless communication systems, specifically improving handover procedures between base stations. The problem addressed is the delay and inefficiency in autonomous cell selection by user equipment (UE), where the UE independently selects a target base station without explicit network coordination. The invention provides a method to streamline this process by dynamically assigning control channel resources to facilitate faster and more reliable handover. The method involves identifying specific wireless resources for monitoring indications from the UE regarding its selected target base station from a predefined set of candidate base stations. Upon receiving the UE's indication of the target base station, the network assigns dedicated resources on a first control channel for the target base station during a defined time window. This time window is divided into two subsets: the first subset is reserved for the target base station to transmit control information to the UE, while the second subset allows the source base station to continue transmitting control information. This division ensures seamless handover by preventing resource conflicts and minimizing interruptions in communication. The approach optimizes resource allocation and reduces latency during autonomous cell selection, enhancing overall network efficiency and user experience.
23. The method of claim 22 , further comprising: communicating with the UE based at least in part on transmitting the assignment of resources.
A system and method for wireless communication involves dynamically assigning and managing radio resources in a network to optimize data transmission between a base station and user equipment (UE). The technology addresses inefficiencies in resource allocation, such as underutilization or conflicts, which can degrade network performance and user experience. The method includes determining available radio resources, evaluating the communication needs of the UE, and assigning specific resources to the UE based on these factors. Additionally, the method involves transmitting the resource assignment to the UE to enable proper utilization of the allocated resources. This ensures efficient data transmission while minimizing interference and maximizing throughput. The system may also include mechanisms for monitoring resource usage and adjusting assignments in real-time to adapt to changing network conditions. By dynamically allocating resources, the system improves spectral efficiency, reduces latency, and enhances overall network reliability. The method is particularly useful in dense wireless environments where resource contention is high, such as in urban areas or high-traffic scenarios. The invention may be implemented in 5G or other advanced wireless networks to support high-speed, low-latency communications.
24. An apparatus for wireless communication, comprising: means for receiving, from a source base station, a range of values for at least one criterion for user equipment (UE) autonomous cell selection; means for identifying resources on which to transmit, to a target base station and the source base station, an indication of the target base station from a set of candidate base stations configured for autonomous cell selection; means for measuring a signal for one or more candidate base stations of the set of candidate base stations; means for selecting the target base station from the one or more candidate base stations based at least in part on measuring the signal and the at least one criterion being within the range of values; means for transmitting, to the source base station and to the target base station on the identified resources, the indication of the target base station; means for monitoring a first control channel of the source base station for control information during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after transmitting the indication of the target base station; and means for monitoring a second control channel of the target base station for an assignment of resources during a second subset of the set of transmission intervals corresponding to the threshold time after transmitting the indication of the target base station.
This invention relates to wireless communication systems, specifically improving user equipment (UE) autonomous cell selection and handover procedures. The problem addressed is the need for efficient and reliable handover between base stations without excessive signaling overhead or delays. The apparatus described enables a UE to autonomously select a target base station from a set of candidate base stations based on predefined criteria and signal measurements. The UE receives a range of acceptable values for at least one criterion (e.g., signal strength, quality, or load) from the source base station. The UE measures signals from candidate base stations and selects a target base station that meets the criteria. The UE then transmits an indication of the selected target base station to both the source and target base stations using pre-identified resources. After transmitting the indication, the UE monitors control channels from both base stations during a threshold time period. The UE checks the source base station's control channel for control information during a subset of transmission intervals and the target base station's control channel for resource assignments during another subset of the same intervals. This dual-monitoring approach ensures seamless handover while minimizing signaling overhead and latency. The invention optimizes autonomous cell selection by combining signal measurements with configurable criteria, improving handover efficiency in wireless networks.
25. The apparatus of claim 24 , wherein the identified resources comprise a set of common resources.
This invention relates to resource management in computing systems, specifically addressing the challenge of efficiently identifying and utilizing shared resources across multiple processes or applications. The apparatus includes a resource identification module that detects available resources within a computing environment, such as memory, processing units, or storage, and categorizes them based on their accessibility and usability. A resource allocation module then assigns these resources to tasks or processes, optimizing performance and reducing redundancy. The apparatus further includes a monitoring module that tracks resource usage in real-time, ensuring efficient distribution and preventing conflicts. In this specific embodiment, the identified resources are a set of common resources, meaning they are shared across multiple applications or processes rather than being dedicated to a single task. This approach enhances system efficiency by minimizing resource duplication and improving overall throughput. The apparatus may also include a prioritization module to allocate high-demand resources to critical tasks, ensuring system stability and responsiveness. The invention is particularly useful in multi-user or multi-application environments where resource contention is a common issue.
26. The apparatus of claim 24 , wherein the indication of the target base station is transmitted to the source base station on a first set of resources of the identified resources and to the target base station on a second set of resources of the identified resources.
This invention relates to wireless communication systems, specifically to methods for efficiently transmitting handover-related information between a source base station and a target base station during a handover procedure. The problem addressed is the need to optimize resource usage and ensure reliable communication during handover, where a user device transitions from one base station to another. The apparatus includes a source base station, a target base station, and a user device. The source base station identifies available communication resources for transmitting handover-related information. The apparatus then transmits an indication of the target base station to both the source and target base stations using different sets of the identified resources. The first set of resources is used to send the indication to the source base station, while the second set is used to send the same indication to the target base station. This dual transmission ensures that both base stations receive the necessary information for a seamless handover, reducing the risk of communication failures and improving efficiency. The apparatus may also include additional features, such as determining the first and second sets of resources based on channel conditions, load balancing, or other network parameters. The resources may include time slots, frequency bands, or other communication channels. The invention aims to enhance handover reliability and minimize latency by dynamically allocating resources for critical handover signaling.
27. The apparatus of claim 24 , further comprising: means for receiving the assignment of resources from the target base station; and means for communicating with the target base station based at least in part on receiving the assignment of resources.
This invention relates to wireless communication systems, specifically to apparatuses and methods for facilitating handover between base stations. The problem addressed is the efficient and reliable transfer of communication sessions from a source base station to a target base station during handover, ensuring minimal disruption and optimal resource utilization. The apparatus includes means for receiving an assignment of resources from the target base station, which involves obtaining the necessary communication channels, frequencies, or time slots allocated by the target base station for the handover process. Additionally, the apparatus includes means for communicating with the target base station based on the received resource assignment, enabling seamless transition of the communication session from the source to the target base station. This ensures that the user equipment (UE) or device can continue its communication without significant interruption or degradation in service quality. The invention also involves mechanisms for coordinating with the target base station to ensure that the assigned resources are properly utilized, which may include synchronization, signal alignment, or other preparatory steps to facilitate the handover. The apparatus may further include means for managing the handover process, such as monitoring signal strength, evaluating resource availability, or adjusting communication parameters to optimize performance during the transition. The overall goal is to enhance the reliability and efficiency of handover procedures in wireless networks, particularly in scenarios where rapid and seamless transitions are critical.
28. The apparatus of claim 27 , wherein the means for receiving the assignment of resources comprises: means for receiving the assignment of resources within the threshold time after transmitting the indication of the target base station.
This invention relates to wireless communication systems, specifically addressing the challenge of efficiently managing resource allocation during handover procedures between base stations. The apparatus includes a means for receiving an assignment of resources from a target base station within a predefined threshold time after transmitting an indication of the target base station. This ensures timely resource allocation to minimize service interruptions during handover. The apparatus also includes a means for transmitting an indication of the target base station to initiate the handover process, ensuring the target base station is aware of the impending handover. Additionally, the apparatus may include a means for determining whether the assignment of resources is received within the threshold time, allowing the system to assess the success of the handover procedure. If the assignment is not received within the threshold time, the apparatus may include a means for performing a fallback procedure, such as reattempting the handover or reverting to the original base station. The invention aims to improve handover reliability and reduce latency in wireless communication networks by ensuring timely resource allocation.
29. The apparatus of claim 24 , further comprising: means for receiving an indication of a minimum time between handovers; means for determining that the minimum time has elapsed since a previous handover; and means for selecting the source base station for a handover based at least in part on the determination that the minimum time has elapsed.
This invention relates to wireless communication systems, specifically improving handover decisions between base stations to enhance network efficiency and user experience. The problem addressed is the potential for excessive or premature handovers, which can degrade performance by causing unnecessary signaling overhead, increased latency, and reduced battery life for mobile devices. The apparatus includes a mechanism to receive an indication of a minimum time interval that must elapse between consecutive handovers. This ensures that handovers do not occur too frequently, which could otherwise disrupt service quality. The apparatus also includes a mechanism to determine whether this minimum time has passed since the last handover. If the minimum time has elapsed, the apparatus selects a source base station for a handover, considering this time-based condition alongside other factors. This approach helps stabilize network operations by preventing rapid, back-and-forth handovers between neighboring base stations, which can occur in scenarios like cell edge users or during mobility. The invention builds on a prior apparatus that already performs handover decisions based on signal quality metrics, such as received signal strength or interference levels. By incorporating the minimum time constraint, the system avoids unnecessary handovers while still ensuring timely transitions when required. This method is particularly useful in dense network deployments or high-mobility environments where handover frequency needs to be carefully managed.
30. The apparatus of claim 24 , further comprising: means for receiving radio resource control (RRC) signaling, broadcast information, or downlink control information (DCI), or a combination thereof that indicates the resources on which to transmit the indication of the target base station.
This invention relates to wireless communication systems, specifically methods for a user equipment (UE) to transmit an indication of a target base station during handover procedures. The problem addressed is the need for efficient and reliable signaling of target base station information to facilitate seamless handover between base stations in a cellular network. The apparatus includes a transceiver configured to receive radio resource control (RRC) signaling, broadcast information, or downlink control information (DCI), or a combination thereof. These signals indicate the specific resources (e.g., time, frequency, or code resources) on which the UE should transmit an indication of the target base station. This allows the network to dynamically allocate resources for handover signaling, improving efficiency and reducing interference. The apparatus may also include a processor to determine the target base station based on measurements of neighboring cells and a transmitter to send the indication over the allocated resources. The invention ensures that handover procedures are optimized by leveraging flexible resource allocation mechanisms, reducing latency and improving reliability in wireless communications.
31. The apparatus of claim 30 , wherein the RRC signaling comprises unicast or broadcast signaling.
The invention relates to wireless communication systems, specifically to apparatuses and methods for handling radio resource control (RRC) signaling in cellular networks. The problem addressed is the need for flexible and efficient signaling mechanisms to manage communication between a base station and user devices, particularly in scenarios requiring unicast or broadcast transmission modes. The apparatus includes a base station configured to transmit RRC signaling to user devices. The RRC signaling can be unicast, directed to a specific user device, or broadcast, intended for multiple devices simultaneously. This flexibility allows the base station to adapt signaling based on network conditions, device capabilities, or service requirements. For example, unicast signaling may be used for device-specific configurations, while broadcast signaling can efficiently distribute common information to multiple devices. The apparatus may also include a user device configured to receive and process the RRC signaling, whether unicast or broadcast. The user device can interpret the signaling to adjust its communication parameters, such as modulation schemes, resource allocations, or mobility management procedures. This ensures synchronized and optimized communication between the base station and user devices, improving network efficiency and reliability. The invention enhances wireless communication by providing adaptable signaling methods, reducing overhead and improving resource utilization in cellular networks.
32. The apparatus of claim 24 , wherein the means for measuring the signal comprises: means for measuring at least one of a reference signal received power (RSRP), reference signal received quality (RSRQ), or a signal-to-interference-plus-noise ratio (SINR), or any combination thereof.
This invention relates to wireless communication systems, specifically to apparatuses for measuring signal quality in cellular networks. The problem addressed is the need for accurate and reliable signal quality assessment to optimize network performance and user experience. The apparatus includes a signal measurement component that evaluates the quality of wireless signals received from a base station. This component measures at least one of the following signal metrics: reference signal received power (RSRP), reference signal received quality (RSRQ), or signal-to-interference-plus-noise ratio (SINR). These measurements help determine the strength, reliability, and clarity of the received signal, which are critical for tasks such as handover decisions, network selection, and performance optimization. The apparatus may also include additional components for processing and analyzing these measurements to support functions like mobility management and interference mitigation. By providing precise signal quality data, the invention enables more efficient network operation and improved connectivity for users. The focus is on enhancing signal measurement accuracy to support advanced wireless communication techniques, including 5G and beyond.
33. The apparatus of claim 32 , wherein the at least one criterion comprises a ratio of a first RSRP of the source base station to a second RSRP of the target base station, a ratio of a first RSRQ of the source base station to a second RSRQ of the target base station, or a ratio of a first SINK of the source base station to a second SINR of the target base station, or any combination thereof.
This invention relates to wireless communication systems, specifically to apparatuses for evaluating handover decisions between base stations. The problem addressed is ensuring reliable and efficient handover of a user device from a source base station to a target base station by assessing signal quality metrics to determine optimal handover conditions. The apparatus includes a processor configured to compare signal strength and quality measurements between the source and target base stations. The comparison involves calculating ratios of key performance indicators (KPIs) such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal-to-Interference-plus-Noise Ratio (SINR). The ratios are used to determine whether handover should proceed based on predefined criteria. For example, the apparatus may evaluate the ratio of the source base station's RSRP to the target base station's RSRP to assess whether the target base station provides sufficient signal strength for a stable connection. Similarly, ratios of RSRQ or SINR between the two base stations may be used to ensure the target base station offers better signal quality or interference resistance. The apparatus may also combine multiple KPI ratios to make a more comprehensive handover decision, improving reliability and reducing unnecessary handovers. This approach enhances network performance by minimizing call drops and improving user experience during mobility.
34. The apparatus of claim 24 , further comprising: means for receiving an indication of a transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to wireless communication systems, specifically to apparatuses and methods for facilitating handover between base stations. The problem addressed is the need for efficient and reliable communication of handover-related information, particularly the transmit power used to send handover indications between source and target base stations. The apparatus includes means for receiving an indication of a transmit power to use when transmitting an indication of the target base station to both the source and target base stations. This ensures that the handover process is coordinated with the appropriate power levels, improving signal reliability and reducing interference. The apparatus may also include means for receiving a handover command from the source base station, means for transmitting a handover confirmation to the target base station, and means for receiving a handover confirmation from the target base station. These components work together to ensure seamless handover by confirming the handover process at each stage. The apparatus may further include means for receiving a handover request from the source base station and means for transmitting a handover request acknowledgment to the source base station, facilitating the initial handover negotiation. Additionally, the apparatus may include means for receiving a handover preparation message from the source base station and means for transmitting a handover preparation acknowledgment to the source base station, ensuring that both base stations are prepared for the handover. The apparatus may also include means for receiving a handover execution message from the source base station and means for transmitting a handover execution acknowledgment to the source base station, confirming the execution of
35. The apparatus of claim 34 , wherein the indication of the transmit power comprises an indication of a common transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to wireless communication systems, specifically to handover procedures between base stations. The problem addressed is the need for efficient and reliable communication during handover, particularly in ensuring that the mobile device can effectively signal its target base station to both the source and target base stations using an appropriate transmit power level. The apparatus includes a mobile device configured to transmit an indication of a target base station to both the source and target base stations during a handover process. The key feature is that the mobile device uses a common transmit power level for this transmission, ensuring consistent and reliable communication with both base stations. This common transmit power level is determined based on factors such as signal quality, interference conditions, or other network parameters to optimize performance during the handover. By using a single transmit power level, the mobile device simplifies the handover process, reduces signaling overhead, and improves reliability. The apparatus may also include additional components, such as power control mechanisms or signal processing units, to dynamically adjust the transmit power based on real-time conditions. This approach enhances the efficiency and robustness of the handover procedure in wireless communication systems.
36. The apparatus of claim 34 , wherein the indication of the transmit power comprises an indication of a first transmit power to use to transmit the indication of the target base station to the source base station and a second transmit power to use to transmit the indication of the target base station to the target base station.
This invention relates to wireless communication systems, specifically to apparatuses and methods for managing handover between base stations. The problem addressed is ensuring reliable communication during handover by optimizing transmit power levels for signaling between a mobile device and both the source and target base stations. The apparatus includes a mobile device configured to receive signals from a source base station and a target base station during a handover process. The mobile device determines an indication of transmit power, which includes two distinct power levels: a first transmit power for sending an indication of the target base station to the source base station, and a second transmit power for sending the same indication to the target base station. This dual-power indication ensures that the mobile device maintains strong communication links with both base stations during the handover, preventing signal loss or interference. The apparatus may also include the source and target base stations, which are configured to receive and process these power-adjusted signals to facilitate a seamless handover. The invention improves handover reliability by dynamically adjusting transmit power based on signal conditions, reducing the risk of dropped connections or degraded performance during transitions between base stations.
37. The apparatus of claim 24 , further comprising: means for transmitting one or more measurement reports to the source base station, wherein the range of values for the at least one criterion for autonomous cell selection is received in response to the one or more measurement reports.
This invention relates to wireless communication systems, specifically improving autonomous cell selection in mobile devices. The problem addressed is the need for mobile devices to efficiently select and connect to the best available cell without excessive signaling overhead or delays. The invention provides a method for a mobile device to receive configuration parameters from a source base station, including a range of values for at least one criterion used in autonomous cell selection. The mobile device then transmits measurement reports to the source base station, which responds by providing the range of values for the selection criteria. This allows the mobile device to autonomously select a target cell based on the received criteria, such as signal strength, quality, or load conditions, without requiring continuous interaction with the network. The invention also includes means for the mobile device to adjust its cell selection behavior based on the received ranges, ensuring optimal performance and reduced handover failures. The solution enhances network efficiency by minimizing signaling while enabling intelligent, autonomous cell selection decisions.
38. The apparatus of claim 37 , wherein the one or more measurement reports comprise a measurement report for the source base station and one or more measurement reports for one or more of the set of candidate base stations.
This invention relates to wireless communication systems, specifically improving handover procedures between base stations. The problem addressed is the inefficiency and potential service disruptions during handover when a mobile device transitions from a source base station to a target base station. The invention provides an apparatus that enhances handover decisions by analyzing measurement reports from both the source base station and multiple candidate target base stations. The apparatus collects and processes these reports to determine the optimal target base station for handover, reducing the likelihood of failed handovers or suboptimal connections. The measurement reports include signal quality metrics, such as signal strength and interference levels, from the source and candidate base stations. The apparatus uses this data to evaluate the suitability of each candidate base station, ensuring a smoother and more reliable handover process. This approach improves network performance by minimizing service interruptions and optimizing resource allocation during handover. The invention is particularly useful in dense network environments where multiple base stations are available, and selecting the best target is critical for maintaining seamless connectivity.
39. The apparatus of claim 24 , wherein the target base station is selected based at least in part on radio conditions for communications with the source base station.
This invention relates to wireless communication systems, specifically to methods for selecting a target base station during handover procedures. The problem addressed is improving handover decisions to enhance communication reliability and reduce interruptions. The apparatus includes a source base station, a target base station, and a user device. The source base station manages the user device's current connection and initiates handover procedures when necessary. The target base station is a candidate for receiving the handover from the source base station. The user device communicates with the source base station and measures radio conditions, such as signal strength and quality, to assess the suitability of the target base station. The selection of the target base station is based at least in part on these radio conditions, ensuring that the handover is made to a base station with favorable communication parameters. This approach optimizes network performance by reducing the likelihood of failed handovers and improving overall connectivity. The apparatus may also include additional components for monitoring and adjusting handover decisions in real-time, further enhancing reliability. The invention is particularly useful in environments with dynamic radio conditions, such as urban areas or high-mobility scenarios.
40. The apparatus of claim 24 , further comprising: means for receiving an indication of the set of candidate base stations configured for autonomous cell selection.
This invention relates to wireless communication systems, specifically improving autonomous cell selection in mobile devices. The problem addressed is the inefficiency in selecting optimal base stations when a device operates in an autonomous mode, where it independently chooses a cell without network assistance. The invention provides a solution by enabling a mobile device to receive and utilize a predefined set of candidate base stations for autonomous cell selection. This set is configured by the network or a user, ensuring the device selects from a curated list of suitable base stations rather than scanning all available options. The apparatus includes a receiver that obtains this set of candidate base stations, allowing the device to prioritize or restrict its selection process to these pre-approved options. This reduces unnecessary signaling, improves connection speed, and enhances battery efficiency by minimizing unnecessary scans. The invention is particularly useful in scenarios where network conditions are dynamic, or user preferences dictate specific base station choices. The apparatus may also include additional components for processing the received set, such as filtering or ranking the candidates based on signal strength, load, or other criteria. The overall system ensures more reliable and efficient autonomous cell selection in wireless networks.
41. An apparatus for wireless communication, comprising: means for transmitting, to a user equipment (UE), a range of values for at least one criterion for autonomous cell selection; means for identifying resources to monitor for an indication of a target base station from a set of candidate base stations configured for autonomous cell selection; means for receiving, from the UE on the identified resources, the indication of the target base station; and means for transmitting, to the UE, control information on a first control channel during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of an assignment of resources to the UE on a second control channel by the target base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection and handover procedures. The problem addressed is efficient and reliable handover of user equipment (UE) between base stations without excessive signaling overhead or delays. The apparatus provides a method for a source base station to facilitate autonomous cell selection by a UE. It transmits a range of values for at least one criterion that the UE uses to evaluate and select a target base station from a set of candidate base stations. The apparatus then identifies specific resources (e.g., time-frequency slots) where the UE should monitor for an indication of the selected target base station. Upon receiving this indication from the UE, the apparatus transmits control information to the UE on a first control channel during a designated subset of transmission intervals within a threshold time period. During the remaining subset of this time period, the target base station transmits resource assignments to the UE on a second control channel. This coordinated approach ensures seamless handover by dividing control signaling responsibilities between the source and target base stations, reducing latency and improving reliability. The invention optimizes resource usage and minimizes interruptions during autonomous cell selection and handover processes.
42. The apparatus of claim 41 , further comprising: means for receiving, from the UE, an indication of a source base station after the threshold time after receiving the indication of the target base station; and means for communicating with the UE based at least in part on receiving the indication of the source base station.
This invention relates to wireless communication systems, specifically improving handover procedures between base stations to enhance reliability and efficiency. The problem addressed is ensuring seamless communication during handover when a user equipment (UE) transitions from a source base station to a target base station, particularly in scenarios where the handover process may fail or require adjustments. The apparatus includes means for receiving an indication from the UE of a target base station to which the UE intends to handover. Additionally, the apparatus includes means for receiving, after a threshold time, an indication of the source base station from the UE, which may occur if the handover to the target base station fails or is delayed. The apparatus then communicates with the UE based on the received indication of the source base station, allowing the system to revert to the source base station if necessary. This ensures continuous connectivity by dynamically adjusting communication links based on the UE's status during handover. The apparatus may also include means for determining whether the UE has successfully completed the handover to the target base station within the threshold time. If the handover is unsuccessful, the apparatus maintains or reestablishes communication with the UE via the source base station, preventing service interruptions. This mechanism improves handover reliability in wireless networks, particularly in environments with unstable connections or high mobility.
43. The apparatus of claim 41 , further comprising: means for receiving one or more measurement reports from the UE, wherein the range of values for the at least one criterion for autonomous cell selection is transmitted in response to the one or more measurement reports.
This invention relates to wireless communication systems, specifically improving autonomous cell selection by user equipment (UE) in scenarios where network coverage is limited or unreliable. The problem addressed is ensuring UEs can efficiently select suitable cells without excessive signaling overhead or delays, particularly in environments with dynamic network conditions. The apparatus includes a network node configured to transmit configuration parameters to a UE, enabling the UE to autonomously select a cell based on predefined criteria. The criteria are defined by a range of values, which the UE uses to evaluate available cells and make selection decisions without direct network intervention. The apparatus further includes means for receiving measurement reports from the UE, which trigger the transmission of these criteria ranges. The UE periodically or event-driven sends these reports, containing signal quality, load, or other relevant metrics, allowing the network to dynamically adjust the criteria ranges to optimize cell selection. This approach reduces reliance on centralized control, minimizes signaling overhead, and improves UE responsiveness in varying network conditions. The dynamic adjustment of criteria ranges based on measurement reports ensures the UE can adapt to changing environments while maintaining efficient resource utilization. The invention is particularly useful in scenarios like emergency communications, rural deployments, or dense urban areas where traditional handover mechanisms may be inefficient.
44. An apparatus for wireless communication, comprising: means for identifying resources to monitor for an indication, from a user equipment (UE), of a target base station from a set of candidate base stations configured for autonomous cell selection; means for receiving, from the UE on the identified resources, the indication of the target base station; and means for transmitting, to the UE, an assignment of resources on a first control channel for the target base station during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of control information to the UE on a second control channel by a source base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection by user equipment (UE) in scenarios where the UE transitions between base stations. The problem addressed is the efficient coordination of control channel resources during handover or cell reselection to minimize service disruption. The apparatus includes means for identifying specific resources that the UE will monitor to signal its selection of a target base station from a predefined set of candidate base stations. Upon receiving this indication from the UE, the apparatus assigns resources on a first control channel for the target base station during a designated subset of transmission intervals within a threshold time period. The remaining subset of intervals within this period is reserved for the source base station to transmit control information to the UE on a second control channel. This division ensures seamless handover by preventing resource conflicts and maintaining continuous communication. The apparatus dynamically allocates control channel resources based on the UE's autonomous selection, optimizing network efficiency and reducing latency during cell transitions.
45. The apparatus of claim 44 , further comprising: means for communicating with the UE based at least in part on transmitting the assignment of resources.
This invention relates to wireless communication systems, specifically improving resource allocation and communication efficiency between a network and user equipment (UE). The problem addressed is the need for more efficient and reliable resource assignment mechanisms in wireless networks to enhance data transmission performance. The apparatus includes a resource allocation module that assigns communication resources to the UE, such as time slots, frequency bands, or code sequences, to optimize data transmission. The apparatus also includes a communication module that transmits the resource assignment to the UE, enabling the UE to use the allocated resources for uplink or downlink communication. The communication module ensures that the UE receives the assignment in a timely manner, reducing latency and improving synchronization between the network and the UE. Additionally, the apparatus may include a monitoring module that tracks resource usage and network conditions to dynamically adjust assignments based on real-time data. This adaptive approach helps maintain optimal performance under varying network loads and interference levels. The apparatus may also include a feedback mechanism to confirm successful resource allocation and transmission, allowing for error correction and retransmission if needed. By integrating these components, the apparatus enhances the efficiency and reliability of resource allocation in wireless communication systems, leading to improved data throughput and reduced latency. This solution is particularly useful in high-density networks where resource management is critical for maintaining service quality.
46. A mobile device for wireless communication, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the mobile device to: receive, from a source base station, a range of values for at least one criterion for user equipment (UE) autonomous cell selection; identify resources on which to transmit, to a target base station and the source base station, an indication of the target base station from a set of candidate base stations configured for autonomous cell selection; measure a signal for one or more candidate base stations of the set of candidate base stations; select the target base station from the one or more candidate base stations based at least in part on measuring the signal and the at least one criterion being within the range of values; transmit, to the source base station and to the target base station on the identified resources, the indication of the target base station; monitor a first control channel of the source base station for control information during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after transmitting the indication of the target base station; and monitor a second control channel of the target base station for an assignment of resources during a second subset of the set of transmission intervals corresponding to the threshold time after transmitting the indication of the target base station.
A mobile device for wireless communication includes a processor and memory storing instructions to enable autonomous cell selection. The device receives a range of values for at least one criterion (e.g., signal strength, quality, or load) from a source base station to evaluate candidate base stations. The device measures signals from these candidates and selects a target base station based on the measurements and the criterion falling within the received range. It then transmits an indication of the target base station to both the source and target base stations using pre-identified resources. After transmission, the device monitors a control channel from the source base station during a first subset of transmission intervals within a threshold time, while simultaneously monitoring a control channel from the target base station for resource assignments during a second subset of the same intervals. This dual-monitoring ensures seamless handover by maintaining connectivity with the source base station while preparing to transition to the target base station. The method optimizes autonomous cell selection by dynamically adjusting to network conditions and reducing handover delays.
47. The mobile device of claim 43 , wherein the identified resources comprise a set of common resources.
A mobile device is configured to optimize resource allocation by identifying and utilizing a set of common resources shared across multiple applications or processes. The device includes a processor and memory storing instructions that, when executed, cause the processor to detect resource usage patterns, determine which resources are frequently accessed by multiple applications, and designate these resources as common resources. The device then prioritizes access to these common resources to improve efficiency, reduce redundancy, and minimize conflicts between applications. This approach helps address the problem of inefficient resource management in mobile devices, where multiple applications may compete for the same resources, leading to performance degradation, increased power consumption, and potential system instability. By identifying and managing common resources, the device ensures smoother operation, better resource utilization, and enhanced overall performance. The solution is particularly useful in environments where multiple applications run simultaneously, such as in smartphones, tablets, or other portable computing devices. The system may also include mechanisms to dynamically adjust resource allocation based on real-time usage data, ensuring optimal performance under varying conditions.
48. The mobile device of claim 46 , wherein the indication of the target base station is transmitted to the source base station on a first set of resources of the identified resources and to the target base station on a second set of resources of the identified resources.
This invention relates to wireless communication systems, specifically improving handover procedures between base stations in mobile networks. The problem addressed is efficient and reliable transmission of handover signaling during a mobile device's transition from a source base station to a target base station. Current methods may suffer from delays or failures in signaling, leading to dropped connections or degraded performance. The invention involves a mobile device configured to identify available communication resources for transmitting handover-related information. The device determines a target base station for handover and transmits an indication of this target to both the source and target base stations. The transmission occurs on different sets of resources: a first set for the source base station and a second set for the target base station. This dual transmission ensures that both base stations receive the necessary information, reducing the risk of handover failure due to signaling issues. The mobile device may also monitor the quality of the communication links with the base stations and adjust the transmission resources accordingly to maintain reliable connectivity during handover. The invention enhances handover reliability and minimizes service interruptions in wireless networks.
49. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: receive the assignment of resources from the target base station; and communicate with the target base station based at least in part on receiving the assignment of resources.
This invention relates to mobile device communication in wireless networks, specifically improving handover procedures between base stations. The problem addressed is ensuring seamless and efficient communication during handover, where a mobile device transitions from a source base station to a target base station. The invention provides a mobile device with enhanced capabilities to manage this transition by receiving and utilizing resource assignments from the target base station. The mobile device includes a processor and memory storing instructions that, when executed, enable it to receive an assignment of communication resources from the target base station and then establish communication with the target base station based on this assignment. This ensures that the mobile device can quickly and reliably connect to the new base station without interruption. The invention may also involve the mobile device performing additional steps, such as transmitting a handover request to the target base station and receiving a handover command from the source base station, to facilitate the handover process. The overall goal is to minimize latency and improve reliability during handover, enhancing the user experience in wireless networks.
50. The mobile device of claim 49 , wherein the instructions are further executable by the processor to cause the mobile device to: receive the assignment of resources within the threshold time after transmitting the indication of the target base station.
This invention relates to mobile devices in wireless communication systems, specifically addressing the challenge of efficiently managing resource allocation during handover procedures. The technology aims to improve the reliability and speed of resource assignment when a mobile device transitions from one base station to another. The mobile device includes a processor and memory storing instructions that, when executed, enable the device to transmit an indication of a target base station to a source base station. The device then receives an assignment of resources from the target base station within a specified threshold time after transmitting the indication. This ensures timely resource allocation, reducing the risk of service interruption during handover. The system may also include mechanisms to monitor the threshold time and adjust resource allocation strategies based on network conditions. The invention enhances handover efficiency by ensuring that resource assignments are completed promptly, minimizing latency and improving user experience in wireless networks.
51. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: receive an indication of a minimum time between handovers; determine that the minimum time has elapsed since a previous handover; and select the source base station for a handover based at least in part on the determination that the minimum time has elapsed.
This invention relates to mobile device communication systems, specifically improving handover decisions between base stations to enhance network efficiency and user experience. The problem addressed is the potential for excessive or premature handovers, which can degrade performance, increase signaling overhead, and disrupt connectivity. The solution involves a mobile device configured to manage handover timing by enforcing a minimum time interval between consecutive handovers. The device receives a specified minimum time threshold from the network or a predefined setting. When evaluating potential handovers, the device checks whether the minimum time since the last handover has elapsed. If the threshold has not been met, the device delays or avoids the handover, even if signal conditions suggest a switch. This ensures stability and reduces unnecessary handover operations. The mobile device may also prioritize or deprioritize base stations based on additional factors like signal strength, load balancing, or user preferences, but the minimum time constraint takes precedence. This approach optimizes network resource usage and improves service continuity for mobile users.
52. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: receive radio resource control (RRC) signaling, broadcast information, or downlink control information (DCI), or a combination thereof that indicates the resources on which to transmit the indication of the target base station.
A mobile device is configured to facilitate efficient handover in wireless communication systems by dynamically determining and transmitting an indication of a target base station. The device includes a processor and memory storing instructions that, when executed, enable the device to identify a target base station for handover based on signal quality measurements or other criteria. The device then transmits an indication of the target base station to a source base station using specific resources allocated for this purpose. The resources for transmitting the indication are dynamically determined and communicated to the mobile device via radio resource control (RRC) signaling, broadcast information, downlink control information (DCI), or a combination of these methods. This ensures that the handover process is optimized for latency and reliability, reducing interruptions in communication. The mobile device may also receive configuration parameters that define the timing, frequency, or other characteristics of the resources used for transmitting the target base station indication. This approach enhances handover efficiency in scenarios where rapid and accurate handover decisions are critical, such as in high-mobility environments or dense network deployments.
53. The mobile device of claim 52 , wherein the RRC signaling comprises unicast or broadcast signaling.
A mobile device includes a transceiver and a processor. The transceiver receives radio resource control (RRC) signaling from a base station, and the processor processes the signaling to establish or modify a communication link. The RRC signaling may include unicast signaling, which is directed to a specific mobile device, or broadcast signaling, which is transmitted to multiple devices simultaneously. The device may use this signaling to configure radio resources, manage mobility, or handle connection states. The transceiver may also transmit acknowledgment messages or status reports in response to the signaling. The processor may further adjust communication parameters based on the received signaling to optimize performance. The device operates within a wireless communication network, such as 5G or LTE, where efficient signaling is critical for maintaining reliable connections. The invention addresses the need for flexible and efficient signaling mechanisms to support diverse communication scenarios, including high-mobility environments and broadcast services.
54. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: measure at least one of a reference signal received power (RSRP), reference signal received quality (RSRQ), or a signal-to-interference-plus-noise ratio (SINR), or any combination thereof.
This invention relates to mobile devices configured to measure wireless signal quality metrics for improved network performance. The problem addressed is the need for mobile devices to accurately assess signal conditions to optimize connectivity, handover decisions, and overall network efficiency. The mobile device includes a processor and instructions that, when executed, enable the device to measure key signal quality indicators such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Signal-to-Interference-plus-Noise Ratio (SINR). These measurements help the device evaluate the strength, quality, and reliability of wireless signals from nearby base stations or access points. By analyzing these metrics, the mobile device can make informed decisions about network selection, handover timing, and resource allocation, leading to better call quality, data throughput, and energy efficiency. The invention enhances the device's ability to adapt to varying signal conditions, ensuring seamless connectivity in dynamic wireless environments. The solution is particularly useful in scenarios where signal interference, noise, or multipath effects degrade performance, allowing the device to maintain optimal communication links.
55. The mobile device of claim 54 , wherein the at least one criterion comprises a ratio of a first RSRP of the source base station to a second RSRP of the target base station, a ratio of a first RSRQ of the source base station to a second RSRQ of the target base station, or a ratio of a first SINK of the source base station to a second SINR of the target base station, or any combination thereof.
This invention relates to mobile devices configured to evaluate signal quality metrics for handover decisions between base stations in a wireless communication network. The problem addressed is ensuring reliable and efficient handover by comparing signal strength and quality between a source base station and a target base station. The mobile device measures reference signal received power (RSRP), reference signal received quality (RSRQ), and signal-to-interference-plus-noise ratio (SINR) from both the source and target base stations. The device then calculates ratios of these metrics between the two base stations to determine whether handover conditions are met. These ratios help assess the relative signal quality and interference levels, enabling the device to make informed handover decisions. The invention improves handover reliability by considering multiple signal quality indicators, reducing the likelihood of premature or unnecessary handovers. This approach is particularly useful in environments with varying signal conditions, such as urban areas or high-mobility scenarios. The mobile device may use any combination of RSRP, RSRQ, or SINR ratios to evaluate handover suitability, providing flexibility in different network conditions.
56. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: receive an indication of a transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to mobile devices in wireless communication systems, specifically addressing efficient handover between base stations. The problem solved is ensuring reliable and timely handover while minimizing signaling overhead and power consumption during the process. The mobile device includes a processor and memory storing instructions that, when executed, enable the device to facilitate handover from a source base station to a target base station. The device receives an indication of a transmit power to use when sending the handover request to both the source and target base stations. This transmit power setting ensures the handover request is received by both stations, even if the mobile device is at the edge of coverage for either base station. The transmit power may be dynamically adjusted based on signal strength measurements or other network conditions to optimize performance. The device also handles the handover process by coordinating with the source and target base stations, ensuring seamless connectivity during the transition. This approach reduces the risk of dropped calls or service interruptions while conserving the mobile device's battery life by avoiding unnecessary high-power transmissions. The invention is particularly useful in scenarios where the mobile device is moving between cells or experiencing weak signal conditions.
57. The mobile device of claim 56 , wherein the indication of the transmit power comprises an indication of a common transmit power to use to transmit the indication of the target base station to the source base station and the target base station.
This invention relates to mobile device communication in wireless networks, specifically addressing power control during handover between base stations. The problem solved is ensuring efficient and reliable transmission of handover-related information to both the source and target base stations while minimizing power consumption and interference. The mobile device includes circuitry configured to transmit an indication of a target base station to both the source and target base stations during a handover process. The device also determines and indicates a common transmit power level to be used for these transmissions. This common power level ensures that the handover signaling is received by both base stations without requiring separate power adjustments for each transmission. The circuitry may also receive configuration information from the source base station, which may include parameters for determining the common transmit power. The device may further transmit additional information, such as a handover command or measurement reports, using the same or different power levels as determined by the configuration. The invention improves handover reliability by standardizing transmit power for critical signaling, reducing the risk of failed transmissions due to power mismatches. It also optimizes power usage by avoiding redundant power control adjustments for similar transmissions. The solution is particularly useful in scenarios where rapid and synchronized communication between the mobile device and multiple base stations is required.
58. The mobile device of claim 56 , wherein the indication of the transmit power comprises an indication of a first transmit power to use to transmit the indication of the target base station to the source base station and a second transmit power to use to transmit the indication of the target base station to the target base station.
This invention relates to mobile devices in wireless communication systems, specifically addressing efficient handover procedures between base stations. During handover, a mobile device must coordinate with both the source and target base stations to ensure seamless connectivity. A key challenge is determining the appropriate transmit power levels for signaling the target base station to both the source and target base stations, as improper power settings can lead to signal interference or dropped connections. The invention describes a mobile device configured to transmit an indication of the target base station to both the source and target base stations using distinct transmit power levels. The device includes a processor and a transceiver that facilitate this dual-power transmission. The first transmit power is used to send the target base station indication to the source base station, while the second transmit power is used to send the same indication to the target base station. This dual-power approach ensures that the handover signaling is optimized for both the outgoing and incoming connections, reducing the risk of signal degradation or interference during the handover process. The mobile device may also include additional components, such as a memory storing instructions for executing the handover procedure and an antenna for wireless communication. The invention improves handover reliability and efficiency in wireless networks by dynamically adjusting transmit power levels based on the specific requirements of the source and target base stations.
59. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: transmit one or more measurement reports to the source base station, wherein the range of values for the at least one criterion for autonomous cell selection is received in response to the one or more measurement reports.
This invention relates to mobile devices in wireless communication networks, specifically addressing autonomous cell selection in scenarios where a mobile device transitions between cells. The problem solved is ensuring efficient and reliable cell reselection without excessive signaling overhead or delays. The mobile device includes a processor and memory storing instructions that, when executed, enable the device to perform autonomous cell selection based on predefined criteria. The device measures signal conditions, such as signal strength or quality, and compares these measurements against a range of values for at least one criterion to determine whether to reselect a target cell. The range of values for these criteria is dynamically received from a source base station in response to measurement reports transmitted by the mobile device. This allows the network to adaptively adjust the reselection thresholds based on real-time conditions, improving handover performance and reducing unnecessary signaling. The mobile device may also receive additional parameters, such as cell identifiers or timing information, to facilitate the reselection process. The invention enhances mobility management by enabling the mobile device to autonomously decide cell reselection while minimizing reliance on network commands, thereby optimizing resource usage and user experience.
60. The mobile device of claim 59 , wherein the one or more measurement reports comprise a measurement report for the source base station and one or more measurement reports for one or more of the set of candidate base stations.
A mobile device is configured to facilitate seamless handover between base stations in a wireless communication network. The device includes a processor and a transceiver for communicating with a source base station and a set of candidate base stations. The processor is configured to generate one or more measurement reports, including a measurement report for the source base station and additional measurement reports for one or more of the candidate base stations. These reports contain signal quality metrics, such as signal strength or signal-to-noise ratio, which are used to evaluate the suitability of the candidate base stations for handover. The device may also determine handover timing based on the measurement reports, ensuring minimal disruption during the transition. The transceiver transmits the measurement reports to the source base station, which uses them to decide whether to initiate a handover to one of the candidate base stations. This system improves handover reliability and reduces connection drops by providing detailed signal quality data for multiple potential target base stations. The mobile device may also include additional features, such as filtering or prioritizing candidate base stations based on the measurement reports to optimize handover decisions.
61. The mobile device of claim 46 , wherein the target base station is selected based at least in part on radio conditions for communications with the source base station.
A mobile device is configured to optimize handover decisions between base stations in a wireless communication network. The device monitors radio conditions, such as signal strength or quality, during communication with a source base station. When a handover is needed, the device selects a target base station based on these radio conditions to ensure reliable and efficient connectivity. This selection process may involve evaluating multiple candidate base stations and choosing the one that provides the best communication performance. The device may also consider additional factors, such as network load or user preferences, to further refine the handover decision. By dynamically assessing radio conditions, the mobile device improves handover reliability and reduces the risk of dropped connections or degraded service quality during transitions between base stations. This approach is particularly useful in environments with varying signal conditions, such as urban areas or high-mobility scenarios. The invention enhances overall network performance by ensuring seamless and intelligent handover decisions.
62. The mobile device of claim 46 , wherein the instructions are further executable by the processor to cause the mobile device to: receive an indication of the set of candidate base stations configured for autonomous cell selection.
This invention relates to mobile devices configured for autonomous cell selection in wireless communication networks. The problem addressed is the need for mobile devices to efficiently select and connect to the most suitable base stations without relying solely on network-provided instructions, thereby improving connectivity and reducing latency in scenarios where network signaling may be delayed or unavailable. The mobile device includes a processor and memory storing instructions that, when executed, enable the device to perform autonomous cell selection. The device identifies a set of candidate base stations based on predefined criteria, such as signal strength, network load, or user preferences. The device then evaluates these candidates to determine the optimal base station for connection, considering factors like signal quality, data throughput, and power consumption. The selection process may involve real-time measurements or historical data to ensure reliable connectivity. Additionally, the device can receive an indication of the set of candidate base stations configured for autonomous cell selection, allowing it to refine its selection process based on network-provided or preconfigured parameters. This feature enhances flexibility, enabling the device to adapt to different network conditions or operator policies while maintaining autonomous operation. The invention aims to improve user experience by minimizing connection delays and optimizing network resource usage.
63. A network device for wireless communication, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the network device to: transmit, to a user equipment (UE), a range of values for at least one criterion for autonomous cell selection; identify resources to monitor for an indication, from the UE, of a target base station from a set of candidate base stations configured for autonomous cell selection; receive, from the UE on the identified resources, the indication of the target base station; and transmit, to the UE, control information on a first control channel during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of an assignment of resources to the UE on a second control channel by the target base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection and handover procedures in cellular networks. The problem addressed is the need for efficient and reliable handover mechanisms when a user equipment (UE) autonomously selects a target base station from a set of candidate base stations. Traditional handover processes can introduce delays or inefficiencies, particularly in scenarios where the UE must transition between cells without direct coordination from the network. The invention describes a network device for wireless communication, which includes a processor and memory storing instructions to execute several functions. The device transmits a range of values for at least one criterion to the UE, enabling the UE to autonomously select a target base station based on these criteria. The network device then identifies specific resources to monitor for an indication from the UE regarding the selected target base station. Upon receiving this indication, the device transmits control information to the UE on a first control channel during a designated subset of transmission intervals. These intervals occur within a threshold time after the UE's indication, while a second subset of the intervals is reserved for the target base station to assign resources to the UE on a second control channel. This coordinated approach ensures seamless handover by dividing control channel usage between the source and target base stations, minimizing interference and improving efficiency. The invention enhances autonomous cell selection by structuring communication in a way that reduces latency and optimizes resource allocation during handover.
64. The network device of claim 63 , wherein the instructions are further executable by the processor to cause the network device to: receive, from the UE, an indication of a source base station after the threshold time after receiving the indication of the target base station; and communicate with the UE based at least in part on receiving the indication of the source base station.
This invention relates to wireless communication systems, specifically improving handover procedures between base stations to enhance network reliability and user experience. The problem addressed is ensuring seamless communication during handover when a user equipment (UE) transitions from a source base station to a target base station, particularly when the handover process may be delayed or interrupted. The invention involves a network device configured to manage handover operations. The device includes a processor and memory storing instructions that, when executed, enable the device to receive an indication of a target base station from the UE during a handover process. If the UE does not complete the handover within a predefined threshold time, the network device receives an additional indication from the UE specifying the source base station. Based on this information, the network device adjusts its communication with the UE to maintain connectivity, either by re-establishing a connection with the source base station or facilitating a new handover attempt. This solution ensures that the UE remains connected to the network even if the initial handover fails or is delayed, reducing service interruptions. The network device dynamically adapts its communication strategy based on the UE's feedback, improving handover reliability and minimizing downtime. The invention is particularly useful in scenarios where network conditions or mobility patterns cause handover delays, ensuring continuous service for the UE.
65. The network device of claim 63 , wherein the instructions are further executable by the processor to cause the network device to: receive one or more measurement reports from the UE, wherein the range of values for the at least one criterion for autonomous cell selection is transmitted in response to the one or more measurement reports.
A network device in a wireless communication system is configured to manage autonomous cell selection by user equipment (UE). The device includes a processor and memory storing instructions that, when executed, enable the device to transmit a range of values for at least one criterion used by the UE to autonomously select a cell. The criterion may include signal strength, signal quality, or other performance metrics. The network device also receives measurement reports from the UE, which contain data on signal conditions or other relevant measurements. In response to these reports, the network device dynamically adjusts and transmits updated ranges of values for the selection criteria, allowing the UE to make more informed decisions about cell selection without requiring direct network intervention. This approach improves efficiency by reducing signaling overhead and enabling the UE to autonomously switch to optimal cells based on real-time conditions. The system is particularly useful in scenarios where rapid cell reselection is needed, such as in high-mobility environments or areas with varying signal quality. The network device may also coordinate with other network elements to ensure consistent application of the selection criteria across the network.
66. A network device for wireless communication, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the network device to: identify resources to monitor for an indication, from a user equipment (UE), of a target base station from a set of candidate base stations configured for autonomous cell selection; receive, from the UE on the identified resources, the indication of the target base station; and transmit, to the UE, an assignment of resources on a first control channel for the target base station during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of control information to the UE on a second control channel by a source base station.
A network device, functioning as a **target base station** in a wireless communication network, is equipped with a processor and memory. It is programmed to: 1. **Monitor for UE Selection:** Continuously identify and monitor specific radio resources for an incoming signal. This signal is an "indication" from a User Equipment (UE) announcing that the UE has autonomously chosen *this* target base station from a pre-defined set of candidate base stations for its connection. 2. **Receive UE Request:** Successfully receive this indication message from the UE on the monitored resources. 3. **Assign Resources & Coordinate:** In response, transmit an assignment of communication resources back to the UE on its dedicated control channel. This transmission occurs within a specified time limit (a "threshold time") after receiving the UE's indication. During this *exact same threshold time*, the UE's previous (source) base station is also configured to transmit control information to the UE on a separate control channel, allowing for a seamless transition or fallback. ERROR (embedding): Error: Failed to save embedding: Could not find the 'embedding' column of 'patent_claims' in the schema cache
67. The network device of claim 66 , wherein the instructions are further executable by the processor to cause the network device to: communicate with the UE based at least in part on transmitting the assignment of resources.
A network device in a wireless communication system manages resource allocation for user equipment (UE) to optimize data transmission efficiency. The device includes a processor and memory storing instructions that, when executed, enable the device to assign communication resources to the UE based on network conditions, such as available bandwidth, interference levels, or UE capabilities. The instructions further enable the device to transmit this resource assignment to the UE, allowing the UE to utilize the allocated resources for uplink or downlink communication. This ensures efficient use of network resources while maintaining reliable connectivity. The device may also monitor the assigned resources to adjust allocations dynamically, improving overall network performance. The solution addresses challenges in wireless communication systems where resource allocation must balance efficiency, fairness, and quality of service. By dynamically assigning and communicating resource allocations, the network device enhances data throughput and reduces latency, particularly in dense or high-traffic environments. The system supports various wireless standards, including 5G and beyond, where flexible resource management is critical for handling diverse service requirements.
68. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable to: receive, from a source base station, a range of values for at least one criterion for UE autonomous cell selection; identify resources on which to transmit, to a target base station and the source base station, an indication of the target base station from a set of candidate base stations configured for autonomous cell selection; measure a signal for one or more candidate base stations of the set of candidate base stations; select the target base station from the one or more candidate base stations based at least in part on measuring the signal and the at least one criterion being within the range of values; transmit, to the source base station and to the target base station on the identified resources, the indication of the target base station; monitor a first control channel of the source base station for control information during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after transmitting the indication of the target base station; and monitor a second control channel of the target base station for an assignment of resources during a second subset of the set of transmission intervals corresponding to the threshold time after transmitting the indication of the target base station.
This invention relates to wireless communication systems, specifically to user equipment (UE) autonomous cell selection. The problem addressed is improving the efficiency and reliability of UE transitions between base stations without requiring continuous signaling with the network. The invention provides a method for a UE to autonomously select a target base station from a set of candidate base stations based on predefined criteria and signal measurements. The UE receives a range of acceptable values for at least one criterion, such as signal strength or quality, from the source base station. The UE then measures signals from candidate base stations and selects a target base station that meets the criteria. The UE transmits an indication of the selected target base station to both the source and target base stations using pre-identified resources. After transmitting the indication, the UE monitors control channels from both base stations during a threshold time period. The UE checks the source base station's control channel for control information during a first subset of transmission intervals and the target base station's control channel for resource assignments during a second subset of the same intervals. This dual-monitoring approach ensures seamless handover while minimizing signaling overhead. The invention enhances network efficiency by enabling UEs to autonomously select optimal base stations based on real-time measurements and predefined criteria.
69. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable to: transmit, to a user equipment (UE), a range of values for at least one criterion for autonomous cell selection; identify resources to monitor for an indication, from the UE, of a target base station from a set of candidate base stations configured for autonomous cell selection; receive, from the UE on the identified resources, the indication of the target base station; and transmit, to the UE, control information on a first control channel during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of an assignment of resources to the UE on a second control channel by the target base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection and handover procedures for user equipment (UE). The problem addressed is the need for efficient and reliable communication during autonomous cell selection, where a UE independently selects a target base station from a set of candidate base stations without explicit network coordination. The invention provides a method to enhance this process by defining a structured communication framework. A non-transitory computer-readable medium stores code for wireless communication, including instructions to transmit a range of values for at least one criterion to a UE, enabling the UE to evaluate and select a target base station autonomously. The system identifies specific resources to monitor for an indication from the UE regarding its selected target base station. Upon receiving this indication, the system transmits control information to the UE on a first control channel during a predefined subset of transmission intervals, which occurs within a threshold time after the UE's indication. During this same threshold time, a second subset of transmission intervals is reserved for the target base station to assign resources to the UE on a second control channel. This structured approach ensures synchronized communication between the UE and the network, minimizing disruptions during autonomous cell selection and handover. The invention optimizes resource allocation and control signaling, improving reliability and efficiency in wireless networks.
70. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable to: identify resources to monitor for an indication, from a user equipment (UE), of a target base station from a set of candidate base stations configured for autonomous cell selection; receive, from the UE on the identified resources, the indication of the target base station; and transmit, to the UE, an assignment of resources on a first control channel for the target base station during a first subset of a set of transmission intervals, the set of transmission intervals corresponding to a threshold time after receiving the indication of the target base station, wherein a second subset of the set of transmission intervals corresponding to the threshold time is configured for transmission of control information to the UE on a second control channel by a source base station.
This invention relates to wireless communication systems, specifically improving autonomous cell selection by user equipment (UE) in scenarios where the UE transitions between base stations. The problem addressed is the need for efficient resource allocation during handover or cell reselection to minimize service disruption. The invention provides a method for a source base station to dynamically assign control channel resources to a UE after it autonomously selects a target base station from a predefined set of candidates. The system identifies specific resources to monitor for the UE's indication of its chosen target base station. Upon receiving this indication, the source base station assigns resources on a first control channel for the target base station during a designated time window (comprising multiple transmission intervals). This window is divided into two subsets: one for the target base station to transmit control information to the UE and another for the source base station to continue providing control information. This approach ensures seamless handover by coordinating resource allocation between the source and target base stations, reducing latency and improving reliability during autonomous cell selection. The solution is implemented via executable code stored on a non-transitory computer-readable medium, enabling real-time adaptation to the UE's cell selection decisions.
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April 5, 2017
March 8, 2022
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